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Re: [TenTec] Tuner

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Tuner
From: Steve Hunt <steve@karinya.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Mon, 08 Jul 2013 22:56:01 +0100
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
At 3.5MHz, the SWR(50) of an 80m dipole cut for resonance at 3.8MHz could easily be 12:1 or higher. Depending on the length of the coax, that can present impedances at the tuner that will be well outside the matching range of a 238.

Steve G3TXQ



On 08/07/2013 22:36, kb4srn@yahoo.com wrote:
Thanks for the advice.  The antenna is the old dipole fed with 8x coax.  I did 
have a doublet up that was fed with ladder line in the past and it was great.  
Wife just doesn't like the idea of me cutting a hole in the wall to get the 
ladder line out of the shack.

My tuner matches great transmitting on 40 with the 80 band dipole.  Where I 
have the problem is tuning the dipole that is cut for 3800 down into the CW 
portion of the band.  I just can't seem to find the combination.  I'll try your 
suggestions and watch the meter closely as I may be missing the sweet spot I'm 
looking for.

Again, thanks for the advice.






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